Turpentine and resin extractor.



E. KOCH. TURPENTINE AND RESIN EXTRAGTOR. APPLICATION FILED 1107.29, 1912. RENEWED JULY 1, 1914.

Patented Feb. 9, 1915.

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EBERHARD KOCH, 0F GROSSE TETE, LOUISIANA.

TURPENTINE AND RESIN EXTBACTQR,

menace.

Specification of Letters Patent.

Patented Feb. s, eis.

Application filed November 29, 1912, Serial No. 734,117. Renewedlfuly 1, 191a. Serial No. 848,480.

To all whom it may concern Be it known that. I, Eraser-mm) Loon, a

citizen of the United States, residing at Grosse Tete, in the parish of Iberville and State of Louisiana, have invented new and useful Improvements in Turpentine and Resin Extractors, of which the following is a specification. This invention relates to an apparatus for separation of the finer quantities of volatile constituents and recovery of the rosin, enabling substantially all of the volatile constituents of the wood to be driven off and obtained.

The invention consists of the features of construction, combination and arrangement of parts hereinafter fully described and claimed, reference being had to the accompanying drawings, in which Figure l is a vertical section through'an extractor embodying my invention. Fig. 2 is a horizontal section of the same.

Referring to the drawing, 1 designates the extractor, comprising a vertical cylinder or casing closed at its upper end by a head or removable jacket 2 and having a surrounding acket" 3, forming a dead a r space to prevent radiation of heat from the extractor. If desired, the space between the extractor cylinder and jacket maybe filled with any suitable heat insulating material.

The extractor 1 is provided with aconical or tapered bottom 4 communicatin througl'i a connection 5 with a centrifuge. separator 6. In the connection 5 is a yalve 7, which controls communication between the extractor and separator. 'Through this outlet connection the rosin and oleoresinmay be discharged for treatment in the separator 6, allowing resin of a high degree of purity to be obtained. The conical bottom a is detachably secured in position in an airtight manner, and may be removed at the completion of each extracting action for the discharge of the refuse wood. i

Arranged within the bottom of the body of tide extractoris a spider 8 provided with a bearing 9 for the lower end of a shaftlO carrying a series of radialagitator blades 12. The lower end of the shaft is'stepped into the bearings 9, so that it may be readily applied and removed, and the upper end of the shaft is journaled in and extended outwardly through the cover 2 and pro vided with a coupling 13 for connection with any suitable type of driving element,

whereby the agitator may be rotated from any. suitable source of'power. The blades' 12 of the agitator operate to constantly'stir up and agitate the mass of Wood under treatment in the extractor, to facilitate circulation. of. the extracting agents and the separation and discharge of the volatile constituents of the wood.

Arranged within the extractor is a manifold 14; communicating with a valved inlet 15 and provided with inwardly extending perforate nozzles 16 Which'are arranged'on' lines between theiagitator blades 12, and thus cooperate therewith to elfect thorough agitation of the wood when the agitator is I in action. These nozzles are designed to 1n]ect steam mto the mass of wood at Va rious points, to drive offthe volatile 'constituents without raising thetemperature of the vaporsto such a degree as to separatethem into other component gases or render. them incapable of being condensed. The top or cover 2 is provided with an outlet 17 communicating with a valved standard pipe 18, fro 'n'which a valve conductingpipe 19 leadsto any suitable type of condenser-in which the turpentine and other vapors are condensed 'for subsequent recovery. A valved inlet 21 is provided at the lower end of the extractor for the introduction ofa I hydrocarbon or other suitable liquid solvent. In operation, the cover 2 is removed and the wood in a finely comminuted condition introduced into the extractor, after which the cover is applied in position, the agitator set into operation and the valve in the.

steam 'inlet 15 opened for the supply of steam through the nozzles lof the manifold. The temperature of the mass of wood is raised by the injected steam, causing the volatile constituents-thereof to be liberated,

the resin and other heavier constituents feeding downward by gravity into the egg v I 1,127,453

Agi r in this operation not only facilitates the circulation of the steam through the mass of wood, and the liberation and discharge of the resin and lighter volatile constituents, but permits also of the escape of the Water of condensationwhich flowsdownward' with the turpentine, thus keepingthe mass of wood heated to therequirerl temperature and preventing the'acoun'iulation of any condensed -moisture therein. After the greater portion of the turpentine and resin have been driven off the motion of the agitator is arrested, the steam supply outofi; and a solvent intro duced through the pipe 21, which solvent passes up into the mass of wood and extracts the remainder of the volatile constitnentsi As soon as the prpper amount of solvent is introduced, the valve in the pipe 21 is closed and the steam inletvalve opened, whereby a further supply of steam is in jected through the nozzles to flash the solvent into vapor, so that it will pass off with the lighter volatile constituents to the con denser for separation and recovery. When all the available constituents have been extracted the steam supply is cut off, the motion of the agitator. arrested, and the valve 7 opened .for the discharge of the'resin and oleoresin into the separator" 6, which is then operated in any preferred manner to secure the delivery of a highly pure resin. The bottom 4 is then detached and the refuse wood discharged, after which the extractor may be filled with a fresh charge of Wood for a repetition of the operationjabove' described.

The advantages arising from any improved construction are, that the constituents of the wood areliberated and'obtained with.- out heating them to an objectionable degree,

thus enabling a larger quantity and a better quality of the turpentine and otherproducts to be obtained; the agitation of the wood. during thein ection of the steam throughout the mass of the wood insures the thorough heating of thevvood and liberation of the volatile constituents in a rapid manner a by the introduction of a solvent together with steam during the final st go of operatipn any remaining quantity of the volatile censtituents'which cannot be driven off by the use 6f heat alone Will be liberated Fiirthermore, the construction described permits of the ready separation of. the resin from all impurities, and the obtention of the turpentine and other volatile vapors in a condition'free from all foreign odors and other contaminating substances.

'1 claiin: a An extractor of the character described comprising a vessel having a heat insulating jacket and provided at its upper end with a vapor collection space having a valved out let and at its lower end with-a conical resin collection space provided with-a "valved out let, a spider disposed Within the vessel above said conical lower end, said spider being provided with a bearin a, shaft stepped in said bearing and extending; vertically within thevessel and outwardly at the top thereof, laterally projecting" agitator blades upon said shaft at diil'erent elevations, a manifold. disposed within the vessel, comprising upper and lower rings and. vert'ical pipes, opposite series or" steam injection nozzles projecting from said pipes and ternating in arrangement with the-agitator blades, a steam supply conductor connected with the upper ring ofthe manifold, and cdnductor for the admission of a volatile solvent communicating with the lower end of the extractor.

In testimonywhereof I aflix my signature in presence of two witnesses.

EBERHARD KOCE 'Witnesse's:

' Jossrrr A, Game Louie Dem/an. 

